ArticleAbdominal radiology (New York)2023
Abdominal MR elastography with multiple driver arrays: performance and repeatability.
Article in Abdominal radiology (New York), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 10 citations in OpenAlex.
- Reduced lumbar myofascial mobility in chronic low back pain quantified using MR elastography-based slip interface imaging.European radiology experimental · 2026Article
- MR elastography in patients with hepatocellular carcinoma: tumor stiffening during compression induced by respiration to assess microvascular invasion.European radiology · 2026Article
- Imaging Evaluation for Steatotic Liver Disease.Korean journal of radiology · 2026Review
- Mechanomedicine in digestive surgery: a theranostic framework integrating mechanical diagnostics and therapeutic modulation across the perioperative continuum.Theranostics · 2026Review
- MR elastography-based prediction of development of hepatocellular carcinoma in patients with chronic hepatitis B with sustained virological response.European radiology · 2025Article
- Spleen stiffness in a healthy pediatric population undergoing liver magnetic resonance elastography.Pediatric radiology · 2025Article
- Acquisition Efficiency and Technical Repeatability of Dual-Frequency 3D Vector MR Elastography of the Liver.Journal of magnetic resonance imaging : JMRI · 2025Article
- Review
- Magnetic resonance elastography resolving all gross anatomical segments of the kidney during controlled hydration.Frontiers in physiology · 2024Article
- MR Elastography: Practical Questions, From theAJR. American journal of roentgenology · 2024Review
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Authors and funding
9 authors at 1 institution in 1 country.
Funding
Abstract
purposeTo evaluate the performance and repeatability assessing liver, spleen, and kidney stiffness with magnetic resonance elastography (MRE), using arrays of pneumatic passive drivers.
methodsAn array of four flexible, pneumatically activated passive drivers for abdominal MRE were developed and tested in this study. Multiple MRE acquisitions were performed prospectively in a series of eleven volunteers, with activation of all combinations of the four drivers, individually and simultaneously. MRE exams were repeated three times to study within-day and between-day test-retest repeatability. Semi-quantitative evaluation of wave propagation and penetration, and quantitative assessment of tissue stiffness was conducted for liver, spleen, and kidneys.
resultsWhen driver location and amplitude were sufficient to achieve necessary shear wave illumination in any given region of interest, the results showed excellent test-retest repeatability in abdominal organ stiffness with both single and multiple driver configurations. The results confirmed that multiple driver arrays provided suitable shear wave illumination over a larger region of the abdomen, allowing more reliable stiffness measurements in multiple organs. MRE assessment of the spleen was found to be prone to effects of excessive shear wave amplitude, however.
conclusionA multiple driver array provides shear wave illumination over a larger region of the abdomen than obtained with a single driver, for MRE assessment of multiple abdominal organs, providing excellent test-retest repeatability in stiffness measurements. However, careful tuning of the location and amplitude of each driver is essential to achieve consistent results.
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